MXR M306 Poly Blue Octave Pedal

MXR M306 Poly Blue Octave Pedal

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    The MXR Poly Blue Octave brings modern and classic pitch shifting styles together with fuzz and modulation to create the ultimate octave pedal for tone crafters and sonic seekers.

    Leveled up.
    The Poly Blue Octave features four separate octave divisions—one octave down, two octaves down, one octave up, and two octaves up—and you get to control the level of each in the mix. Each is polyphonic by default, which means they sound just as amazing with chords as they do with single note passages. Your dry signal gets its own level control, as well, so you can dial in the perfect blend of pitch-shifted tones.

    From contemporary clarity to raw vintage grit.
    The Mono switch takes you back to the gritty, monophonic tones of analog style pitch shifters. In this mode, the sub-octave signals have the warm vibes and raw personality of a pedal such as the MXR Vintage Bass Octave, while the higher octave signals resemble the Octavio Fuzz with its fuzz intensity dialed all the way back.

    Call up the thunder and lightning.
    The Poly Blue Octave comes equipped with an unruly fuzz that’s inspired by the classic MXR Blue Box™ Fuzz. Applied to all five signals, the fuzz volume can be adjusted using the Dry knob after pressing and holding the Fuzz button. When used with the sub-octave signals, the fuzz sounds thick and subterranean. Over the higher pitched signals, the fuzz is searing and synth-like. Run them all at the same time for a choir of thunder and lightning.

    Phase yourself.
    For infusing your octave tones with an alluring sense of motion, from thick and syrupy to frenzied and frantic, the Poly Blue Octave features a dual-mode modulation circuit. In polyphonic mode, the circuit provides an uncanny simulation of the famous Leslie effect, and while in monophonic mode, it provides classic swirls and swooshes inspired by the Phase 90. Like the fuzz effect, the modulation applies to all five signals when engaged. The Mod knob adjusts the rate of the effect—when you want it off, just roll the Mod knob back fully counterclockwise.

    Step up and take control.
    Through the EXP jack, the Poly Blue Octave allows you to control various settings with an expression pedal such as the Volume (X)™8 Pedal or an off-board switch such as the MXR Tap Tempo Switch to sweep between two different knob and switch configurations or toggle the fuzz and mono modes on and off.

    A full palette of tones and textures in a single pedal.
    The MXR Poly Blue Octave delivers high-performance pitch shifting, fuzz, and modulation in a ruggedly reliable housing with true bypass switching. Put this into your signal chain, and open up new sonic frontiers.

    CALIFORNIA PROPOSITION 65 WARNING

    WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.

    Shop Similar Models

    MXR M306 Poly Blue Octave Pedal

    Item #:DUN M306
    Manufacturer Part Number:M306
    UPC:710137126640

    Customer Reviews

    Based on 5 reviews
    Popular topics
    ROY P. 🇺🇸
    Verified Buyer
    Loving this sonics on this

    Loving this sonics on this product

    Published date
    09/23/25
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    John V. 🇺🇸
    Verified Buyer
    The MXR Poly Blue Octave

    The MXR Poly Blue Octave pedal is the perfect addition to my pedal board. I’m a bass player that used the POG pedal for years and it is an excellent sounding pedal. But I am going to get more use from the Poly Blue. I love the fuzz addition and the Mod variation. Very pleased and would recommend thi...

    Published date
    08/08/25
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    Joe 🇺🇸
    Verified Reviewer
    Does not always play well with others.

    Sounds awesome on its own. But installing it on my pedalboard caused a squealing noise even in bypass. Turns out the power jack does not play well with others, (and I also learned my MXR DC Brick isn’t an isolated power supply.) Since it was easier to return the pedal, back it went. No wonder it shi...

    Published date
    10/08/24
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    Jonwylde16 🇺🇸
    Verified Buyer
    Get you one now!

    This pedal is awesome. I waited and waited to order and finally pulled the trigger and so glad I did. The adjustable octave are amazing. With the added adjustable fuzz and Leslie style mod the options are endless. And big shout out to AMS for the speedy delivery and great customer service

    Published date
    08/04/23
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    Andrew L. 🇺🇸
    Verified Buyer
    Such a useful pedal! Using

    Such a useful pedal! Using the SUB! and OCT+1 together at about 10% in the mix, fattens up clean channels and adds deginition to a high gain rhythm channel. Want your guitar to sound like an organ? Max out the SUB-1, SUB-2, OCT-1, and OCT-2! The mod offers a light chorus with as little as 5% mix. Cr...

    Published date
    04/26/26
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